misc/151122: BTX 1.02 crashes on boot

[Renato]

>Number:         151122
>Category:       misc
>Synopsis:       BTX 1.02 crashes on boot
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 30 17:50:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Renato
>Release:        Every Release that has BTX 1.02
>Organization:
Politec
>Environment:
HP Compaq 6005 Pro Microtower

- AMD Phenom II X4 Processor B93 (2.8 GHz, 8 MB total cache)
- Chipset AMD 785G
- Everything is SATA (CD-ROM and HD)
>Description:
I want to install FreeBSD on this machine (HP) and when I boot, it stops on message below:

Attempting Boot From CD-ROM
CD Loader 1.2

Building the boot loadar arguments
Looking up /BOOT/LOADER... found
Relocating the loader and the BTX
Starting the BTX loader
_
BTX loader 1.00  BTX version is 1.02

Note the cursos blinking upon the last phrase. Keyboard not answer my calls. I test too plugging a pendrive with FreeBSD without success, having the same results.
For suspects from chipset and SATA controllers, i've changed some settings on BIOS (SATA emulator: RAID, IDE Native, IDE "Legado" and SATA) and all of changes has the same result.
I've tested others FreeBSD (the LiveCD ones) and I make it boot, but the FreeBSD's version was 4.3 and I need the last one (8.1). I note that LiveCD's BTX version was 1.01. So I downloaded others old versions that has the same version and works too (every old FreeBSD's has the same BTX version 1.01).
I tried to mix the loader of the old boot to the new boot, without success. The message was "BTX halted". I think that is not the right way to do this.
>How-To-Repeat:
Just boot the newer versions of FreeBSD that has BTX loader 1.02 on HP Compaq 6005 Pro Microtower to view the message.
>Fix:
To fix the problem is study the case and fix. I'm not developer, so I can't help you.

>Release-Note:
>Audit-Trail:
>Unformatted: